Dynamic Analysis of Gas and Solid Flows in Blast Furnace with Shaft Gas Injection by Hybrid Model of DEM-CFD
スポンサーリンク
概要
- 論文の詳細を見る
In order to mitigate CO2 emissions from steel industry, decreasing coke rate by shaft gas injection such as top gas recycling is a favorable way. The conception based on oxygen blast furnace is able to bring several profits for intensifying gas reduction and decreasing coke rate by massive coal injection. In these processes, gas injection from auxiliary tuyere plays an important role to inject reducing gas or make up heat balance in the upper part. Therefore, the effect of shaft gas injection is considered to be so important factor to realize the above processes. In the present study, dynamic behaviors of gas and solid flow, and stress distribution between particles in the blast furnace with gas injection at different shaft levels were three-dimensionally examined by DEM-CFD.Since the permeability resistance of burden in blast furnace is dominant for gas flow, gas injection from auxiliary tuyere is restricted to specified areas due to the insufficient horizontal inertial gas force compared with upwards gas. Although these results are slightly influenced by the number of auxiliary tuyeres and gas velocity, the overall behaviors do not change. It was estimated that shaft gas did not diffuse uniformly. The penetration of shaft gas into center of the blast furnace is limited to peripheral zone. Thus, penetration area of shaft gas in horizontal section is almost proportional to ratio of shaft gas and gas from the conventional tuyere. Then, the change of stress distribution between particles was calculated and gas penetration effect was quantitatively clarified.
- 2011-01-15
著者
-
Natsui Shungo
Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University
-
Ueda Shigeru
Institute Of Multidisciplinary Research For Advanced Materials Tohoku University
-
Nogami Hiroshi
Department Of Chemical Engineering Ichinoseki National College Of Technology
-
Ariyama Tatsuro
Institute Of Maltidisciplinary Research For Advanced Materials Tohoku University
-
Ariyama Tatsuro
Steel Research Laboratory Jfe Steel Corp.
-
Inoue Ryo
Institute Of Multidisciplinary Research For Advanced Materials Tohoku University
-
Inoue Ryo
Institute For Advanced Materials Processing Tohoku University
-
Kano Junya
Institute For Advanced Materials Processing Tohoku University
-
Natsui Shungo
Institute Of Multidisciplinary Research For Advanced Materials Tohoku University
-
夏井 俊悟
東北大学多元物質科学研究所
-
Ueda Shigeru
Inst. Of Multidisciplinary Res. For Advanced Materials (imram) Tohoku Univ.
-
Kano Junya
Inst. Of Multidisciplinary Res. For Advanced Materials (imram) Tohoku Univ.
-
Inoue Ryo
Institute Of Multidisciplinary Research For Advanced Materials (imram) Tohoku University
-
Ueda Shigeru
Institute Of Multidisciplinary Research For Advanced Materials (imram) Tohoku University
-
Natsui Shungo
Institute Of Multidisciplinary Research For Advanced Materials (imram) Tohoku University
-
Inoue Ryo
Inst. Of Multidisciplinary Res. For Advanced Materials Tohoku Univ.
-
UEDA Shigeru
Institute of Industrial Science, The University of Tokyo
関連論文
- Influences of Physical Properties of Particle in Discrete Element Method on Descending Phenomena and Stress Distribution in Blast Furnace
- Transient Behavior of Burden Descending and Influence of Cohesive Zone Shape on Solid Flow and Stress Distribution in Blast Furnace by Discrete Element Method
- Simulation of Mass Flow Rate of Particles Discharged from Hopper by Particle Element Method
- Simultaneous Three-dimensional Analysis of Gas–Solid Flow in Blast Furnace by Combining Discrete Element Method and Computational Fluid Dynamics
- Dynamic Analysis of Gas and Solid Flows in Blast Furnace with Shaft Gas Injection by Hybrid Model of DEM-CFD
- Relation between mechanochemical dechlorination rate of polyvinyl chloride and mill power consumption
- Mechanochemical dechlorination of polyvinyl chloride with calcium sulfates
- Reduction of Indium(III) Oxide to Indium through Mechanochemical Route
- Preparation of GaN Powder by Mechanochemical Treatment of Gallium under Ammonia Gas Environment
- 高炉冷間モデル実験との比較に基づく離散要素法パラメーターの感度解析
- Quantitative Analysis of Total and Insoluble Elements and Inclusion Composition in Metal by Laser Ablation ICP-MS Method
- Cold-model Experiments on Deadman Renewal Rate Due to Sink-Float Motion of Hearth Coke Bed
- Numerical Analysis of Static Holdup of Fine Particles in Blast Furnace
- Numerical Analysis on Blast Furnace Performance under Operation with Top Gas Recycling and Carbon Composite Agglomerates Charging
- Numerical Analysis on Blast Furnace Performance under Operation with Waste Plastics Injection and Top Gas Recycling
- Numerical Analysis on Injection of Hydrogen Bearing Materials into Blast Furnace
- Numerical Analysis on Charging Carbon Composite Agglomerates into Blast Furnace
- Numerical Analysis on Top Gas Recycling in Blast Furnace with Carbon Composite Agglomerates Charging
- Numerical Evaluation on Blast Furnace Performance under Operation with Carbon Composite Agglomerates Charging
- Numerical Analysis on Effects of Charging Carbon Composite Agglomerates on Blast Furnace Operation
- Mathematical Model of Over-micron and Nano-scale Powders Accumulation in a Coke Fixed-Bed Filter
- Numerical Simulation of the Moving Bed Furnace for Iron Scrap Melting
- Numerical Simulation of the Moving Bed Furnace for Iron Scrap Melting
- Three-dimensional Multiphase Mathematical Modeling of the Blast Furnace Based on the Multifluid Model
- Numerical Analysis of Multiple Injection of Pulverized Coal, Prereduced Iron Ore and Flux with Oxygen Enrichment to the Blast Furnace
- Transient Mathematical Model of Blast Furnace Based on Multi-fluid Concept, with Application to High PCI Operation
- Thermodynamics on Control of Inclusions Composition in Ultra-clean Steels
- Dissolution Behavior and Stabilization of Fluorine in Secondary Refining Slags
- Influence of Gypsum Addition and Hydrothermal Treatment on Dissolution Behavior of Fluorine in Hot Metal Pretreatment Slags
- Mechanism of Dephosphorization with CaO-SiO_2-Fe_tO Slags Containing Mesoscopic Scale 2CaO・SiO_2 Particles
- Behavior of Phosphorous Transfer from CaO-Fe_tO-P_2O_5(-SiO_2) Slag to CaO Particles
- Analysis of transient blast furnace behavior by using a 3-D mathematical model
- Three-dimensional blast furnace mathematical modeling based on multi-fluid theory
- Fluorine-containing Mineral Phases in Ironmaking and Steelmaking Slags and Their Solubilities in Aqueous Solution
- Analysis on Material and Energy Balances of Ironmaking Systems on Blast Furnace Operations with Metallic Charging, Top Gas Recycling and Natural Gas Injection
- Numerical Investigation on Effects of Deadman Structure and Powder Properties on Gas and Powder Flows in Lower Part of Blast Furnace
- Distributions of Sn, Sb, and Bi between Ag-Pb Alloy and PbO Based Melt at 1273K
- Characteristics of Solid Flow and Stress Distribution Including Asymmetric Phenomena in Blast Furnace Analyzed by Discrete Element Method
- Optimization of Physical Parameters of Discrete Element Method for Blast Furnace and Its Application to the Analysis on Solid Motion around Raceway
- Improvement of Reactivity of Carbon Iron Ore Composite with Biomass Char for Blast Furnace
- Reaction Model and Reduction Behavior of Carbon Iron Ore Composite in Blast Furnace
- Infrared Emission Spectra of CaF_2-CaO-SiO_2 Melt
- Phasediagram study on the Al_2O_3-CaO-TiO_2 system
- Production of Mn-Fe Alloy from Slag Generated in Mn-removal Treatment of Molten Cast Iron
- Phosphorous Partition between 2CaO・SiO_2 Particles and CaO-SiO_2-Fe_tO Slags
- Effect of Bottom Bubbling Conditions on Surface Reaction Rate in Oxygen-Water System
- Behavior of Cobalt in Iron- and Steel-making Processes
- Thermodynamics of Zirconium Deoxidation Equilibrium in Liquid Iron by EMF Measurements
- Size Distribution of Deoxidation Products with Ti, Pr and Ti/Pr in Fe-10mass%Ni Alloy
- Grain-growth-inhibiting Effects of TiC and ZrC Precipitates in Fe-0.15-0.30mass%C Alloy
- Effect of TiN Precipitates on Austenite Grain Size in Fe-1.5%Mn-0.12%Ti-Si(
- Histological Analysis of Triphalangism Associated with Polydactyly of the Thumb
- Development of Coating Granulation Process at Commercial Sintering Plant for Improving Productivity and Reducibility
- Influences of Physical Properties of Particle in Discrete Element Method on Descending Phenomena and Stress Distribution in Blast Furnace
- Transient Behavior of Burden Descending and Influence of Cohesive Zone Shape on Solid Flow and Stress Distribution in Blast Furnace by Discrete Element Method
- Recent Progress and Future Perspective on Mathematical Modeling of Blast Furnace
- Enhancement of Reactivity of Carbon Iron Ore Composite Using Redox Reaction of Iron Oxide Powder
- Chondrodysplasia Punctata with Myopathic Involvement
- Catalytic Effect of Fe, CaO and Molten Oxide on the Gasification Reaction of Coke and Biomass Char
- Influence of Blast Furnace Inner Volume on Solid Flow and Stress Distribution by Three Dimensional Discrete Element Method
- Dynamic Analysis of Gas and Solid Flows in Blast Furnace with Shaft Gas Injection by Hybrid Model of DEM-CFD
- Thermodynamic Consideration on the Absorption Properties of Carbon Dioxide to Basic Oxide
- Simultaneous Determination of the Composition and Size of Oxide Particles in Solid Materials by Laser Ablation-Inductively Coupled Plasma Mass Spectrometry
- Activity Coefficient of AgO_ in PbO-NaO_ and PbO-CaO Melts at 1273K
- Thermodynamic Properties of Selenium in Ag-Pb Alloy and Lead Oxide Phases at 1273K
- Activity Coefficient of AgO_ in the PbO-SiO_2 Melt at 1273K
- Thermodynamic Study on the Ag-Pb-O System at 1273K
- Design of Innovative Blast Furnace for Minimizing CO_2 Emission Based on Optimization of Solid Fuel Injection and Top Gas Recycling
- Simultaneous Three-dimensional Analysis of Gas-Solid Flow in Blast Furnace by Combining Discrete Element Method and Computational Fluid Dynamics
- Numerical Inverstigation of Simulaneous Injection of Pulverized Coal and Natural Gas with Oxygen Enrichment to the Blast Furnace
- Optimization of Ironmaking Process for Reducing CO_2 Emissions in the Integrated Steel Works
- Thermodynamic Assessment of Hot Metal and Steel Dephosphorization with MnO-containing BOF Slags
- Thermodynamic Assessment of Manganese Distribution in Hot Metal and Steel
- Hydration of Crystallized Lime in BOF Slags
- Preface to the Special Issue on "Recent Progress in Modeling, Data-processing and Control of Ironmaking Process"
- CO_2 Absorption and Desorption Abilities of Li_2O-TiO_2 Compounds
- Penetration Effect of Injected Gas at Shaft Gas Injection in Blast Furnace Analyzed by Hybrid Model of DEM-CFD
- Behavior of Vanadium and Niobium during Hot Metal Dephosphorization by CaO-SiO_2-Fe_tO Slag
- Influence of Oxide Particles and Residual Elements on Microstructure and Toughness in the Heat-Affected Zone of Low-Carbon Steel Deoxidized with Ti and Zr
- Application of Laser Ablation ICP Mass Spectrometry for Analysis of Oxide Particles on Cross Section of Alloys and Steels
- Wettability Model Considering Three-Phase Interfacial Energetics in Particle Method
- Numerical Simulation of Dripping Behavior of Droplet in Packed Bed Using Particle Method
- 粒子配置を考慮した充填層の熱物質移動解析
- 冷間モデルと離散要素法を用いた竪型乾留炉内粒子の降下挙動解析
- Extraction of Nonmetallic Inclusion Particles Containing MgO from Steel
- Effects of the Seaweed Bed Construction Using the Mixture of Steelmaking Slag and Dredged Soil on the Growth of Seaweeds
- Evaluation of Coke Mixed Charging Based on Packed Bed Structure and Gas Permeability Changes in Blast Furnace by DEM-CFD Model
- Effect of Multi-phase Oxide Particles on TiN Crystallization and Solidification Structure in Ti-Added Ferritic Stainless Steel
- Experimental Study and Atomic Level Description of Adsorption Process of CO_2 on Doped Alkaline Earth Oxides
- DEM-CFD Model Considering Softening Behavior of Ore Particles in Cohesive Zone and Gas Flow Analysis at Low Coke Rate in Blast Furnace
- Stress Field and Solid Flow Analysis of Coke Packed Bed in Blast Furnace Based on DEM
- Decrease of Sulfide in Enclosed Coastal Sea by Using Steelmaking Slag
- Effect of High Reactivity Coke for Mixed Charge in Ore Layer on Reaction Behavior of Each Particle in Blast Furnace
- Effects of Operation Condition and Casting Strategy on Drainage Efficiency of the Blast Furnace Hearth
- Influence of Physical Properties of Melt on Liquid Dripping in Packed Bed Analyzed by MPS Method
- Applicability of Nonaqueous Electrolytes for Electrolytic Extraction of Inclusion Particles Containing Zr, Ti, and Ce
- Numerical Simulation of Dripping Behavior of Droplet in Packed Bed Using Particle Method
- Evaluation of Coke Mixed Charging Based on Packed Bed Structure and Gas Permeability Changes in Blast Furnace by DEM-CFD Model
- Influence of Physical Properties of Melt on Liquid Dripping in Packed Bed Analyzed by MPS Method
- Effect of Multi-phase Oxide Particles on TiN Crystallization and Solidification Structure in Ti-Added Ferritic Stainless Steel